WESPC Diesel Engine 9520A301G Fuel Injection Pump For Perkins Engine Parts

WESPC Diesel Engine 9520A301G Fuel Injection Pump For Perkins Engine Parts

Application:

The service-exchange fuel injection pump 9520A301G delivers high-pressure fuel to the mechanical distributor-type system of Perkins T4.236 and AT4.236 four-cylinder turbocharged diesels (4.0 L). These engines power agricultural tractors, combine harvesters, mobile generator sets and industrial machinery that must keep steady torque and low fuel burn across long duty cycles.

Technical specifications:

The pump is a cam-driven, mechanical distributor type with an integral centrifugal governor. Maximum delivery pressure is 175 bar at 2 400 r/min with a calibrated flow range of 36–46 mm³ per stroke. The head assembly carries four delivery valves timed to 12 mm plunger lift. Drive is via taper-lock hub and 5/8-inch wide belt, requiring 0.25 mm backlash at the timing gear. The unit is timed statically at 24° BTDC with automatic advance mechanism providing 7° advance by 1 800 r/min. Weight is 4.8 kg and overall dimensions 220 mm × 165 mm × 130 mm.

Material & performance features:

The pump body is cast from close-grain iron and machined to 0.01 mm concentricity to eliminate internal leakage. Plungers and barrels are hardened steel, precision-lapped to 0.0002 mm clearance for repeatable metering. An internal pressure-relief valve prevents over-pressurisation, while a replaceable paper element filter protects the governor weights. Each assembly is flow-matched on computerised test benches to ±1 % tolerance, ensuring balanced cylinder contribution and minimal smoke. The unit is compatible with ultra-low-sulphur diesel and biodiesel blends up to B20.

Interchange part numbers:

PERKINS 9520A301G, 9520A301F, 9520A301E; MASSEY FERGUSON 1447170M1, 1447170M91; LANDINI 747606M91; reference crosses also to Stanadyne 28487, Delphi DP210-5521, Denso 294000-0360, and Bosch 0 460 424 085.